Air treatment device



FIG. 1 is a front perspective top view of the air treatment device;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a bottom perspective view thereof. 

CLAIM The ornamental design for an air treatment device, as shown and described. 